Wheel-rim.



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HARRY B. WlLLlAiNlS, F NEW YOl{K,'N.,Y.

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Specification of LettersPatent.

Application filed February 3. 1905. Serial No. 244,039.

To a/ZZ wiz/0m, zz'; 'litany concern:

Be it known that l, HARRY B. WILLIAMS, a citizen of the United States, residing in the borough of Brooklyn, county of Kings, city and State of N ew York, have invented certain new and useful Improvements in Vheel- Rims, of which the. following is a specification.

The tires of automobiles or other rubbertired vehicles are usually made of the clenclier" type, the tire, or at least the outer casing thereof, having lugs at its edges which engage within overhanging flanges of trough-shaped rims. To remove such tires, it is necessary to press one of the edges of the tire or of the casing inward until the lug thereon can be withdrawn from the flange of the rim. The tires are'ordinarily very stiff, and it is difficult to get the edge o f the tire out from under the ange of the l'llll.

The present invention provides a forni of rim and fastening device which facilitates the removal of the tire. To this end one side of the rim made separable from the other, preferably by a direct transverse irovenient. The construction is such as to hold the parts of the rim fastened or locked Vin position when the tire is in use, and to permit the separation of the parts of the rim at other times.

Other advantages are referred to hereinafter. p l y The accompanying. drawings illustrate embodiments of the invention.

Figure 1 is a cross-section through a rim and tire in the unlocked position of the parts. Fig. 2 is a similar section when the parts are locked together. Fig. 3 isa side vieuT 0f the rim of Fig. 1.

An `iinportant feature of the invention is that it utilizes a form of-rim which is now in general use and which can becheaply obtained or manufactured and that it involves very little modification of this rim. lThese facts and the simplicity of operation present great advantages in favor of this invention as compared with other devices for the same purpose.

Referring especially to thedrawings, the usual tiough-sliaped instal rir is shown divided into two parts A and B, each of which has a flat portion forming a continuation of the other and bearing direct] on the wooden l'elly, and an overhanging flange C, engaging and holding the lug or flange D,

of rubber or similar composition, which extends along the edge of the tire E. When the tire is inflated, the flanges Dare pressed so strongly under the flanges C as to resist the various side strains tending to tear the tire from the rim. l/Vhen the tire is deflated, it may be stripped from therim by first squeezing together the edges of the tire, so that one of the flanges D may be slipied out fromvunder the corresponding flange The operation of applying anew tirev is just the reverse, as will be understood. The squeezing together of the inner edges of the tire over a sufficient length of tire to permit the lifting of the flange D out over the flange C is a matter of great labor with the usual stiff tires.V Y Therefore'by dividing the rim into two parts A and B and making these parts separable from each other the labor and time involved in 'the changing of an old tire for a new one are very much reduced. Preferably oneof the sides, as A, is fastened in the usual way, as by screws F, to the wooden fellyer rim G, and the other side B of the metal. rim is removable. To facilitate fastening, the part A may be made slightly wider than the part B, as illustrated. It is .to be understood, however, that the division may be effected at any point from one end to the other of the cross-section of the troughshaped rim without departure from the .invention, and any suitable means .for holding one or both of the parts in operative position may be ado ted.-

A suitab e fastening arrangement comprises a number' of bolts H, which may be arranged one at each spoke J. Each of these bolts has a notched head L to permit it to'be operated with a screw-driver;l the head being cut away at one edge to form a recess M and being rabbeted on its inner face to form a locking-shoulder N, preferably opposite the recess M. Recesses O and P are formed at corresponding. intervals on theunder sides of the members A and B of the rim, the

former accommodating the head L of the bolt and thelatter accommodating and locking the nut Q on the op osite .end of the bolt. rlhe bolts H are preferably placed as near the metal rim A B as possible, though they may be moved farther away there om' b v enlarging the bolt-head L and nut Q. hen the tire is deflated, the parts A and B of the rim may be very easily pressed together in the manner shown in Fig. 1, and the several bolts ll given a half-turn. Thereupon thc IIO ici

ring constituting the pert B may be removed by direct lateralv movement and the tire easily removed. in a similar manner. The removable portion B will preferably be pleeed upon the outer side of the wheelthat is 'to say/,the side Jfarthest away from the body of the vehicle. When a tire is a plied on the rim, the'parts B and A may e similarly pressed together to permit the turning of the bolt-heads back to the position of' Fig. l. Thereupon when the tire is released the spring of the rubber or the airpressure therein, or both, serve to spread the edges of the tire in the manner shown in Fig. 2, thus pressing the part B of the rim out- Ward, so that the under faee thereof engages the looking-shoulder N on the bolt-head and prevents the turning of the latter. This errangement therefore constitutes a very simple and very strong look which holds more strong] y the greater the pressure on the tire, but which when the pressure is removed permits unlocking with the greatest ease and des g ateh.

lgieferably the inner edge oi the tire overlaps the dividing-.line between A and B, so als to elose the slit and prevent or retard the escape of air therethrough, and, Where an seaoes inner tube is used, to prevent this inner tube being squeezed out into the slit.

Though I have deseribedwith great partieularity of detail certain speeiie apparatus embodying my invention, yet it is not to be 'understood therefrom that the invention is limited to the specific embodiments illustrated. Various modifications thereof in detail and in the arrangement and combination of the parts may be made by those skilled in the art Without departure from the inven tion.

What I claim is- A bolt for holding a member upon a Wheelrim, having a head out away at one edge te form a. recess M, and rabbeted on its inner face Ato form a looking-shoulder N, in eembination with a removable member having a shoulder adapted to engage the lockingshoulder N on the head of the bolt under normal Conditions to look the bolt.

' In Witness whereof-I have hereunto signed my name in the presence of two subscribing Witnesses.

HARRY B. WILLIAMS.

Vitnesses:

DOMINGO A. UsINA, lTnEoDoRn T. SNELL 

